Thanks for asking for more. Truth be told, the longer length videos have taken up to 20 hours to produce. This includes multiple takes while recording and > 10+ hours of compression.

The newest videos (on vimeo) are 720p HD, which is why they take so long to compress.

I'm taking donation for hardware, if anyone is interested in helping contribute to faster hardware, which could reduce my delivery time of these screencasts by up to 1/2. See http://tdg-i.com . It's peppered with "donation" buttons.